baber/WOPTO huggingface dataset:
Patent GB-284440-A (GB)
Title: Improvements in or relating to electrical impedance networks
IPC: H03H7/03
Filed: 1926-12-17
Abstract: 284,440. General Electric Co., Ltd., and Bartlett, A. C. Doc. 17, 1926. Attenuation equalizers and similar impedance networks.-In order that the current in an impedance Z may have the same waveform as the voltage applied to terminals T1, T2, a resistance r, Fig. 1, is connected in series and an equal but negative resistance -r in shunt to the impedance Z; the negative resistance may comprise a dynatron. In a modification, Fig. 2, the wave form of the current in the impedance Z is made similar to that of the voltage applied to the grid of the valve C by shunting the impedance Z with a negative resistance -r equal and opposite to the internal resistance of the path between plate and filament of the valve C. Specification 236,189 is referred to.
Patent GB-537238-A (GB)
Title: Improvements in or relating to pitot-static tubes and heating means therefor
IPC: G01P5/165
Filed: 1939-12-12
Abstract: 537,238. Heating pitot tubes by electricity. BENDIX AVIATION CORPORATION. Dec. 12, 1939, No. 32055. Convention date, Dec. 13, 1938. [Class 39 (iii)] [Also in Group XXIX] An electric heating element for a pitot tube comprises a heating wire 23 spaced by insulation 25 from a heat conducting sheath 24, the wire and sheath being wound into a hollow coil which may be wound as in Fig. 3, on one section of the wire as a base. Adjacent tubes of said coil may be soldered or brazed together. The coil is enclosed in a metal sleeve 26 in contact with an outer metal tube 11 in which an opening 15 constitutes the velocity-pressure end of the pitot tube, the pressure being transmitted through a tube 19 having a front baffle 20 and notchedout opening 21 whereby entrance of foreign matter into the tube is prevented. The casing 14 is provided with apertures 16 for transmitting static pressure.
Patent GB-481038-A (GB)
Title: Vacant seat indicator apparatus for cinema or like auditoriums
IPC: G08B5/22
Filed: 1936-11-24
Abstract: 481,038. Visible signals. BRUNNER, J. Nov. 24, 1936, No. 32120. Convention date, Nov. 30, 1935. [Classes 40 (i) and 118 (ii)] Apparatus for indicating the number of vacant seats in a row of seats in a kinema, comprises a box 1 its front face having a plurality of slots 2 adapted to be illuminated through a transparent sheet 16 by a lamp 4. A spring-controlled pivoted shutter 5 is rotated by the seats when they are occupied and the number of illuminated slots gives an indication of the number of vacant seats. The shutter is provided with a stud 20 which operates a switch 11 to open the circuit of the lamp when all the seats are occupied. In a modification, the lamp 4 is dispensed with and the shutter is provided with a phosphorescent surface. The shutter carries a rheostat 14 which co-operates with a contact arm 7 to vary the current in a circuit common to all the indicating boxes so as to provide an indication at a central point of the total number of unoccupied seats.
Patent GB-868849-A (GB)
Title: Improvements in or relating to piston valves
Inventor: FREEMAN STUART RAMSEY
IPC: F16K11/04
Filed: 1958-10-08
Abstract: 868,849. Valves. TEDDINGTON AIRCRAFT CONTROLS Ltd. Sept. 4, 1959 [Oct. 8, 1958], No. 32129/58. Class 135. A valve consisting of two closure-members 7, 8 coacting with seats 9, 11 and 10, 12 to control communication between inlets 3, 4 and outlets 5, 6 has a tubular member 1 on which the closure members are mounted formed in two parts coupled by a resilient sealing bellows 13 which separates the fluid passage around the exterior of the tubular member from that through the tubular member. The two parts of the tubular member are mounted by spiders 16, 17 on an actuating stem 15 and are urged apart towards stops 18, 19 by a spring 14 to enable both valve closure members to seat simultaneously.
Patent GB-1360070-A (GB)
Title: Method and apparatus for the application of a single strip  tread to a tyre carcass
IPC: B29D30/30
Filed: 1971-07-08
Abstract: 1360070 Tyre building apparatus UNIROYAL Inc 8 July 1971 [13 Aug 1970] 32158/71 Heading B7C Tyre building apparatus comprises a frame 10 on which a tread stock let-off mechanism 30 is mounted, the tread 33 in strip form being led from a roll 32 over rollers 44, 46 to a conveyer 50, which can move transversely with respect to the frame and then to a rotatably mounted building drum 130 on to the periphery of which it is applied and stitched by means 70 in an overlapping spiral pattern, Fig. 1, to form the tread. The transverse movement of the conveyer so that the strip of tread stock covers the whole of the width of the building drum consists of a motor 142 which drives a screw 150 on which a nut 151 is mounted. The nut has at its top end a roller 154 which engages in a slot 155a of a bar 155 connected with the conveyer by a slotted member 156. Rotation of the screw will cause the nut to move along it and hence swing the bar about pivot pin 155b, and transversely move the conveyer. Adjustment of the end portion of the bar is made by means 160 before the apparatus is operated. The tread stock let-off mechanism 30 comprises a shaft 34 driven by a motor 42 and on which the tread stock roll is mounted and a driven shaft 39 on which a liner take-up roll is mounted. Photo-electric switches 47, 48 ensure a correct rate of feed and give warning of an empty roll of stock. If a "valley" tread is required hump strips must be applied to the building drum before the tread stock. The hump strip stock is carried on two rolls carried by a rotatably driven shaft 94. Take-up rolls for liner material are mounted on a similar shaft 101. The hump stock is supplied to the drum over rollers 23, 24 and a fixed conveyer 110. The stitching means 70 consists of a bladder 71 adapted to contact the drum and movable between operable and non-operable positions by rams 75 and 73 mounted on the conveyer 50. The Specification discloses an electrical and pneumatic control circuit for operation of the apparatus.
Patent GB-1304067-A (GB)
IPC: C12R1/13
Filed: 1970-07-02
Abstract: 1304067 Production of L-lysine KYOWA HAKKO KOGYO CO Ltd 2 July 1970 [23 July 1969] 32228/70 Heading C2C L-Lysine is produced by culturing an L- lysine producing micro-organism selected from Brevibacterium, Corynebacterium, Arthrobacter, Microbacterium, Bacillus and Nocardia having a nutritional requirement for homoserine, threonine plus methionine, leucine, isoleucine or a mixture thereof, and a resistance to a feedback inhibition and/or repression of at least one compound selected from lysine, threonine, isoleucine and analogues thereof, under aerobic conditions in an aqueous nutrient medium, and accumulating L-lysine in the resultant culture liquor.
Patent GB-938436-A (GB)
Title: Pyrazole derivatives and a process for the preparation thereof
IPC: C07D409/14
Filed: 1960-09-20
Abstract: The invention comprises compounds of general formula <FORM:0938436/IV(a)/1> wherein R1 and R2 are alkyl (1-4C) and R3 is a 2-thienyl or 3-pyridyl radical; and their acid addition salts; and their preparation by condensing a compound of general formula <FORM:0938436/IV(a)/2> (as sodium salt is an example) with a compound of general formula  <FORM:0938436/IV(a)/3> Nitriles of the second general formula above may be prepared from a substituted acetonitrile by reaction with an appropriate carboxylic acid ester.  Hydrazines of the third general formula above may be prepared by condensing an N-alkyl-4-piperidone with a monoacylhydrazine followed by catalytic reduction and acid hydrolysis.  Pharmaceutical compositions contain, in addition to an inert carrier, a compound of the invention.  Oral (tablets) and parenteral (solutions) administration are mentioned. The compounds have antiphlogistic, analgetic, antipyretic, adrenolytic, antirheumatic or serotonin inhibiting effect.
Patent GB-1075247-A (GB)
Title: Solid state radiation emitters
IPC: H01S5/183
Filed: 1964-08-07
Abstract: <PICT:1075247/C4-C5/1> A radiation emitter operable at ambient temperature comprises a heterojunction between a base region of low energy gap semi-conductor material and a more heavily doped carrier injection region of higher energy gap material.  The efficiency of radiative recombination of injected carrier is improved if the lattice constants of the two materials match to within 1%.  A typical device, Fig. 2, is made by dipping a lightly doped germanium wafer in a solution of gallium arsenide in gallium at 600 DEG  C. and withdrawing it when a 5-20 m  layer of the arsenide has grown on it. The solution may contain tin to make the layer more heavily N type. Subsequently one face of the water is exposed to vapour from an indium zinc alloy to convert the layer 12 to P type leaving the other 14 of N type.  In another method a pair of germanium wafers are placed back to back in gallium arsenide solution with the edges coated with graphite to avoid wetting to form N layers on the exposed faces.  The wafers are then placed N layers together in a zinc doped gallium arsenide solution to form P layers on the other faces. Devices made either way are provided with contacts on the P and N layers.  These may be vapour deposited layers of gold or stannic chloride or layers of silver paint.  The contacts may both be annular on the wafer faces as in Fig. 1, or one an annulus and the other an overall layer with a reflective layer of aluminium below it.  If the wafer is thicker annular contacts may be disposed on its cylindrical surface.  In one device of rectangular form, Fig. 4 (not shown), a set of parallel opaque strip contacts is provided on one face and in another, Fig. 6 (not shown), the N injector layer has parallel grooves in it with electrode strips on the intervening ridges which may be connected together in sets.  Other devices comprise N-type wafers with either a single P-type injector layer or a pair connected in parallel, Figs. 7 and 9 respectively (not shown).  A wide range of elemental AIII, BV and AII, BVI compound semi-conductors are stated to be suitable for the heterojunctions. By using mixed crystals exact matching of lattice constants is possible. The following specific heterojunctions are described: HgSe-ZnTe; HgSe-GaSb; GaAs-ZnSe; APZnS; CdSe-ZnTe; InAs-GaSb; HgSe - ASb; InSb and CdTe or a mixed crystal of CdTe and InAs or ZnTe; AP with GaP or a mixed crystal of Ge and Si; and Ge with a mixed crystal of GaAs and GaSb.  The character of the radiation and the form and direction of the resulting radiation beam are determined by the materials used and the geometric configuration of the bodies and reflective layers respectively.
Patent GB-1096650-A (GB)
Title: Improved burner control apparatus for batch heating
IPC: F23N1/00
Filed: 1965-07-29
Abstract: 1,096,650. Controlling burners. C. H PENWILL. July 29, 1965 [July 29, 1965], No. 32401/65. Heading F4T. The supply of fuel to a gas-fired or oil-fired burner employed for the heating of stone or other granulated material increases with the temperature of the material either at a pre-set rate or at a rate determined by the temperature of the material, a fuel supply valve being controlled by a timing device or by means of a thermo-couple, thermistor or other temperaturesensitive electrical circuit responsive to the temperature of the material being heated.
Patent GB-806607-A (GB)
Title: Improvements relating to control systems for nuclear reactors
Inventor: BAYLES JOHN WALLIS
IPC: G21C19/02
Filed: 1955-11-14
Abstract: 806,607. Winches. REYROLLE & CO. Ltd., A. Nov. 9, 1956 [Nov. 14, 1955], No. 32543/55. Class 78 (5). [Also in Group XL (a)] In a nuclear reactor each control rod or batch of control rods is suspended by a flexible elongated suspension member 10, 21 or 30 wound spirally on a winch drum 17, the suspension member comprising a longitudinal series of rigid elements interconnected by flexible or pivotal connections and so constructed and arranged that they bed solidly one upon another in adjacent layers of the spiral winding, and the effective winding radius decreasing as the rod descends. The suspension member may consist of a chain such as is shown in Fig. 1 or Fig. 3, or of two or more cables 31 (Fig. 5) clamped to spacers 32 which are so positioned on the cables that they bed on each other when the cables are wound on to the drum, so preventing damage to the cables. The required speed of raising and lowering is also obtained by proving an induction brake 13, 19, which applies a braking torque proportional to the speed of the drum, and by varying the thickness of the chain or the spacers 32 along the length of the suspension member.
Patent GB-1346534-A (GB)
Title: Aqueous deoxycycline compositions
IPC: A61K47/26
Filed: 1972-07-12
Abstract: 1346534 Stabilized doxycycline solutions PFIZER CORP 12 July 1972 [19 July 1971] 32683/72 Heading A5B Stable aqueous solutions of doxycycline and a magnesium compound also contain a non- ionic surface active agent and have a pH of 5 to 7. The doxycycline may be in the form of its hydrochloride, sulphate, ascorbate, lactate, isonicotinate, gentisinate, nitrate or glutamate. The magnesium compound may be magnesium chloride hexahydrate. The surface active agent may be polyoxyethylenated hydrogenated castor oil or polyoxymethylenated sorbitan oleate. The pH may be adjusted by addition of ethanolamine, citric acid, ammonium hydroxide or sodium hydroxide. The composition may also include an antioxidant, e.g. α-monothioclycerol, magnesium formaldehyde sulphoxeylate, sodium metabisulphite, sodium sulphite, sodium sulphide or thiosorbitol.
Patent GB-265158-A (GB)
Title: Device for varying the temperature coeffcient in induction meters by means of a bimetal strip acting as a self-adjusting reluctance in the magnetic shunt
IPC: G01R11/185
Filed: 1926-12-29
Abstract: 265,158. Landis et Gyr Soc. Anon. Jan. 29, 1926, [Convention date]. Induction Motor meters; temperature errors, compensating for.-A bimetallic strip 5 adjusts the magnetic reluctance of the shunt circuit so as to vary the main flux of the meter in accordance with temperature changes. The strip 5 may be formed of invar and brass or of iron and zinc.
Patent GB-299628-A (GB)
Title: An improved pipe flange attachment
IPC: F16L23/024
Filed: 1927-12-06
Abstract: 299,628. Tomlin, W. Dec. 6, 1927. Butt joints.-A flange A, Fig. 1, is attached to a pipe C by forming it with a thin sleeve B having its outer end divided into sections by means of saw-cuts D, the sleeve being adapted to fit over the pipe end and to be contracted thereon by an external clamping ring E. In a modification, Fig. 3, the divided end of the sleeve is screw-threaded to receive a contracting nut E<1>.
Patent GB-506519-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J13/16
Filed: 1937-11-29
Abstract: 506,519. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 29, 1937, No. 32929. Convention date, Nov. 30, 1936. [Class 39 (i)] Magnetic effects in the vicinity of the anode arms or protective tubes of multi-anode discharge devices such as mercury vapour rectifiers are neutralized by mounting each anode 32 concentrically within a tubular conductor 33 having an external terminal 34. The anode current passes up the conductor 33 to the anode and then down in the discharge through the grid 35 and protective tube 28. The grid is supported on a tube 27, and the tubes 27, 28, 33 are supported by insulators 29, 30. The tube 33 forms part of the container and the insulators 29 have calking means to make vacuum-tight, seals. The Specification as open to inspection under Sect. 91 comprises also arrangements in which the anode current is led up to the anode through an external tube or through two or more external leads on opposite sides of the anode, also an arrangement, Fig. 4 (Cancelled), in which the lead 23 to the cathode 22, passes down through the tank 1 whilst the discharge from each anode 18 proceeds up around the anode lead 25 and through the grid 19 and screen 20 having concentric supports ; the are is displaced outwardly for heavy currents to traverse grid holes narrower than those operative at starting. This subjectmatter does not appear in the Specification as accepted.
Patent GB-447612-A (GB)
Title: Improvements appertaining to domestic wringing and mangling machines
IPC: D06F45/00
Filed: 1934-11-16
Abstract: 447,612. Mangles and wringers. SUMMERSCALES, W.H. G., HOLMES, W., and HOLGATE, B. R., (trading as SUMMERSCALES SONS, W. & S.), Keighley, Yorkshire. Nov. 16, 1934, No. 32970. [Class 138 (ii)] The central portion of the drip tray a of a wringer is formed with a depression c having a projection c<1> which coacts with an upwardly extending projection d on the base cross member b<2> of the frame, to retain the tray in either of its tilted positions. The tray is pivoted at its ends to the side members of the wringer frame and is provided with discharge openings g, g<1>.
Patent GB-1224001-A (GB)
Title: Belt drive
Inventor: PENNYCUICK KENNETH
IPC: F16G1/28
Filed: 1967-07-19
Abstract: 1,224,001. Positive-driving belts. BRITISH ROPES Ltd. 17 July, 1968 [19 July, 1967], No. 33118/67. Heading F2Q. A toothed driving belt, e.g. for a goods lift &c., comprises a flexible strap formed by a plurality of spaced cables 1, of steel wire or helically twisted wires which may be covered with zinc, aluminium, rubber or plastics material, to which are fixed teeth 2a, 2c, made from cast or moulded alloys, rubber or plastics material, and retained on the cables by gripping members in the teeth which crimp the cables. One or more rows of cables 1 may be provided. As shown, the teeth are formed in two frustopyramid parts, the part 2a having a tray formed at its centre and slots 2b through which the cables 1 pass. The teeth are retained axially on the wires by crimping members 4 inserted between the wires in the tray and then tightened together by a bolt (5), Fig. 3a (not shown), in the tooth. The tray may then be filled with a molten elastomeric material, or cold setting polyester resin, and the part 2c pressed on to the lower part. The tooth parts may be pyramidshaped or semi-cylindrical. To connect the ends of cables 1, e.g. to form an endless belt, the cables are passed through holes in a cylinder 6, Fig. 4a (not shown), having rectangular plates (6a) at its ends for reception in recesses in a tooth part 2a. After passing the cables through the holes, the cylinder is rotated to form a belt of desired length, and the plates dropped into the recesses to prevent rotation. The tray of the part 2a is then filled with a solidifiable liquid and the upper part 2e joined thereto.
Patent GB-1235555-A (GB)
Title: Improvements in or relating to numerical control systems
IPC: G05B19/23
Filed: 1968-07-11
Abstract: 1,235,555. Programmed control of machine tools. HOUDAILLE INDUSTRIES Inc. July 11, 1968 [July 12, 1967], No.33191/68. Heading G3N. A numerical positioning control system comprises a stored programme digital computer in on-line real-time programmed communications with a console, supplying numerical positioning command data in accordance with a stored programme, and a machine tool positioning means, which receives digital signals therefrom in accordance with the command data. As shown, a computer 603 has a first stored programme therein with which it interprets command input numerical positioning data, derived from a tape reader 600 through a tape reader interface 601, and feeds digital command signals to X and Y axes servo loops 622, 623. The servo loops, incorporating digital to analog converters independently function to drive the machine axes 605, 607 at a high speed towards the commanded positions. When the axes are within a predetermined distance of the end point, digital-to-analogue circuits, (not shown), progressively slow down the axes. When both axes are in the vicinity of the end point for a required time, null detector components, (not shown), signal the computer via a machine positioning interface 628. Other operations of the computer 603 are then held by a programme interrupt signal from the interface 628. The computer energizes an axis Hold circuit, (not shown), and reads the contents of the absolute position registers 609, 610. The stored programme then compensates for an error in the new position command. The computer then determines if a punch, tool change or other operation should be initiated before a new positioning cycle takes place. A further stored programme enables the generation of new positioning programmes from a console 602 contemperaneously with the machine operation. While the programme being generated is stored in the memory of the computer, any items thereof may be recalled to the console 602 for modification and checking. The operator can then signal the computer to enter the programme on a punched tape. The digital feedback components 112, 611 are photo-electric transducers and include preamplifiers supplying squarewave signals to the synchronizers 117, 608 which determines the sense of rotation of each transducer and supplies a clock pulse for each rotation of the transducer.
Patent GB-479229-A (GB)
Title: An improved drilling fluid for use in well drilling and method of using same
IPC: C09K8/22
Filed: 1936-12-03
Abstract: 479,229. Drilling wells. BOWIE, C. P. Dec. 3, 1936, No. 33209. Convention date, Dec. 3, 1935. [Class 85] A mud for circulating in wells during drilling includes clay and one or more substances wholly or partially soluble in hydrocarbons and substantially insoluble in water. Gums such as resin or chicle, natural or artificial asphalt, and stearates of Zn, Ca, Pb, &c. may be employed. The liquid constituent may be water, glycerine or a mixture of glycerine and water or oil. After drilling, the well may be baled out to allow any oil or gas to pass through the deposited mud lining.